57
Step
Adj. item
Adj. point
Adjustment method and specification
Remarks
27
28
Aging
Flicker
adjustment
Apply the full-screen white signal (or
moving picture signal) and keep the unit
operating for 30 minutes or longer
.
Apply the white/black alternate signal (RGB).
Adjust and minimize flickers on the screen.
VR251
29
P
A
L burst
cleaning coil
adjustment
(only for EW
models)
OSDSW
L103
Apply the P
AL composite signal for
a blue raster
.
Adjust and minimize the R output
offset among H-syncs.
Adjust so that the amplitudes
are the same.
As an input signal, color bar with P
AL
burst/clock phase of +135 degrees
can be used.
When the waveform is observed on an
oscilloscope, the following method is
also used:
Adjust and minimize the difference in
amplitude among fields (within 0.1V).
5
7
8
F
E
D
C
B
A
5
7
8
AVD-W6200/UC
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